======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '238'
                                          'artist'  'pharrell ft jay z'
                                     'text_people'  ''
                                         'release'  'Top 40'
                                           'title'  'frontin-wk29-woei'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-OLDST-3', 'Q-UNU-1', "
 "'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-3']")
                                      'lastfmtags'  "['hip-hop', 'rnb', 'rap', 'hip hop', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '102.127'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Top 40'
'TBPM' (BPM (beats per minute))                     '102.127'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TIT2' (Title/songname/content description)         'frontin-wk29-woei'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'pharrell ft jay z'
'TXXX:Mp3gain_minmax'                               '093,184'
'TXXX:Mp3gain_undo'                                 '+001,+001,N'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:Tracknum'                                     '29'
'TXXX:lastfmtags'                                   ['hip-hop', 'rnb', 'rap', 'hip hop', 'pop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.78 dB'
'TXXX:replaygain_track_peak'                        '0.709029'

========================== row from database ==========================
                                              'id'  1406031
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Top 40/29-pharrell_ft_jay_z_-_frontin-wk29-woei.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  238
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  5725822
                                           'mtime'  1620645405
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat pharrell_ft_jay_z_ _frontin electronic generic or radio dance
                                      'tag_artist'  pharrell ft jay z
                                     'tag_release'  Top 40
                                       'tag_title'  frontin-wk29-woei
                                             'bpm'  102.127
                                    'search_title'  'frontin':1 'frontinwk29woei':4 'wk29':2 'woei':3
                                   'search_artist'  'ft':2 'jay':3 'pharrell':1 'z':4
                                  'search_release'  '40':2 'top':1
                                     'search_rest'  '00poprockelectronic':1 'dance':3 'electronic':10 'frontin':9 'ft':6 'generic':2 'jay':7 'or':11 'pharrell':5 'radio':12 'trapbeat':4 'z':8
                                    'search_combo'  '00poprockelectronic':11 '40':10C 'dance':13 'electronic':20 'frontin':1A,19 'frontinwk29woei':4A 'ft':6B,16 'generic':12 'jay':7B,17 'or':21 'pharrell':5B,15 'radio':22 'top':9C 'trapbeat':14 'wk29':2A 'woei':3A 'z':8B,18
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['hip-hop', 'rnb', 'rap', 'hip hop', 'pop']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620645404.5707414  (2021-05-10 13:16:44)
                             'size'  5725822